Water → HCID 59593306, compound

HRID 1367327Notes

Reaction equation

HRID 1367327 reaction equation
I[C:2]1[C:10]2[C:5](=[N:6][CH:7]=[CH:8][CH:9]=2)[N:4]([Si:11]([CH:18]([CH3:20])[CH3:19])([CH:15]([CH3:17])[CH3:16])[CH:12]([CH3:14])[CH3:13])[CH:3]=1.C([Mg]Cl)(C)C.[C:26]([O:30][C:31](=[O:49])[N:32]([CH2:41][C:42]1[CH:47]=[CH:46][C:45]([Cl:48])=[CH:44][CH:43]=1)[C:33]1[S:34][C:35]([CH:39]=[O:40])=[C:36]([Cl:38])[N:37]=1)([CH3:29])([CH3:28])[CH3:27].O>O1CCCC1>[C:26]([O:30][C:31](=[O:49])[N:32]([CH2:41][C:42]1[CH:47]=[CH:46][C:45]([Cl:48])=[CH:44][CH:43]=1)[C:33]1[S:34][C:35]([CH:39]([OH:40])[C:2]2[C:10]3[C:5](=[N:6][CH:7]=[CH:8][CH:9]=3)[N:4]([Si:11]([CH:18]([CH3:20])[CH3:19])([CH:15]([CH3:17])[CH3:16])[CH:12]([CH3:14])[CH3:13])[CH:3]=2)=[C:36]([Cl:38])[N:37]=1)([CH3:29])([CH3:27])[CH3:28]

Participants

6

Reactant 4

HCID 962WaterHCID 242292273-Iodo-1-[tris(1-methylethyl)silyl]-1H-pyrrolo[2,3-b]pyridineHCID 59593343HCID 59593343, compoundHCID 178418918HCID 178418918, compound

Product 1

HCID 59593306HCID 59593306, compoundYield 57.4%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent3×

Conditions

Temperature
5 °C

Procedure

To a solution of 3-Iodo-1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridine (96, 99 mg, 0.25 mmol) in tetrahydrofuran (5 ml) at −20° C. under nitrogen was added 2.0 M solution isopropylmagnesium chloride in tetrahydrofuran (0.2 ml, 0.31 mmol). The reaction mixture was stirred for 1.5 hours, then allowed to warm to 5° C. After the reaction mixture was cooled down to −20° C., a solution of (4-Chloro-benzyl)-(4-chloro-5-formyl-thiazol-2-yl)-carbamic acid tert-butyl ester (95, 80 mg, 0.2 mmol) in tetrahydrofuran (5 mL) was slowly added. The reaction mixture was stirred for 2.5 hrs, then allowed to warm to 5° C. The reaction mixture was poured into iced water, extracted with ethyl acetate, washed with brine, and dried over magnesium sulfate. After removal of solvent, the residue was purified by silica gel column chromatography eluting with ethyl acetate in hexane to provide the compound as an off-white solid (97, 76 mg, 50%). MS (ESI) [M+H+]=661.32, 663.32.

Workup

  1. temperatureAfter the reaction mixture was cooled down to −20° C.
  2. stirringThe reaction mixture was stirred for 2.5 hrs
  3. temperatureto warm to 5° C
  4. extractionextracted with ethyl acetate
  5. washwashed with brine
  6. dry with materialdried over magnesium sulfate
  7. customAfter removal of solvent
  8. customthe residue was purified by silica gel column chromatography
  9. washeluting with ethyl acetate in hexane

Sources & evidence

ORD record
ord-ebe0d74eeb1d42e7a59ea1fc8b0c72fe
Source dataset
uspto-grants-2011_02
Patent number
US07893075B2

Reaction notes

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